1. Department of Medical Education, Gachon University College of Medicine, Incheon, Korea.
2. Department of Medical Education, CHA University School of Medicine, Pocheon, Korea.
3. Department of Medical Education, Wonkwang University College of Medicine, Iksan, Korea.
4. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
5. Department of Medical Education, Chungnam National University College of Medicine, Daejeon, Korea.
6. Department of Psychiatry, Chungnam National University College of Medicine, Daejeon, Korea.
7. Department of Internal Medicine, Inje University College of Medicine, Busan, Korea.